Financial responsibility laws for drivers often make dashcams superfluous, but if one makes sense in your driving climate, the Thinkware Dash Cam X500 not only reliably records collision footage but offers a few extras that might come in handy, such as speed camera warnings.

If you're spending money on something, you want it to work. Sadly, the Dirt Devil Dash Upright Vacuum doesn't perform well enough to make it worth $119, especially when other sub-$200 vacuums outperform it by leaps and bounds.

Rather than reinvent the wheel, Sony's newest all-in-one car audio receiver pairs a brilliant 7-inch display with GPS navigation powered by TomTom. The result is almost the best of both worlds, but we'd like to see a bit more integration.